Fastening for electrical sign-receptacles.



n. H.',FREBHAH. FASTENING FOB ELECTRICAL SIGN REUEPTAULES.

APPLIOATIOI FILED PS3. 4, 1909.

Patented June 15, 1909.

filmmaker ttnrrnn STATES PATENT OFFICE.

resin it. FREEMAN, or 'rnnnron, Marin ism." 1

FASTENING FOR ELECTRICAL smN-REcEr'rAoLEs.

' Specification of Letters Patent.

Application fileii Febmary l, 19 09: Serial No. 476,052. i

ing and :lasteniug thereot upon asign board or equivalent supporting element or sheet;

The primary object of the invention is to proiide a simple and inexpensive form of ins-toning device, capable of gene al applica tion to any and all kindsof sign receptacles and which can be easily handled andinanipmated. wlnlc at the same time n'oviding for readily and securely fastening the receptacle to the sign board or other supporting ele-' meat in which it'may be installed.

With these and other objects in view,

which will readily appear to those familiar with the art, the invention consists in the novel construction, combination and arrangementof parts hereinafter more fully described. illustrated and claimed.

' In the accompanying drawings: Figure 1 is a rear perspective View of a sign board or other supporting element illustrating an electrical receptacle fastened therein by a fastening device constructed and arranged in accordance with the present invention.

' Fig. 2 is a sectional view of the construction shown in Fig. 1.

I Fig. 3 is a-plan view of the sign board or supporting element illustratin a the plain round formation of the hole to receive the receptacle body. Fig. 4 is a rear elevation of the receptacle body illustratiu the keeper notches in an annular collar at the trout end of the receptacle body. Fig". 5 is a detail in perspective of the complete fastening'devicc removed from the receptacle body.

Like re'lerences designate corresponding parts in the several figures of the drawings.

The fastening device claimed herein may betitted toditl'erentltiiuls and styles of electrical ILt'tPl'tlCltF which are designed to be installed in a sign sheet or equivalent; supporting: element so for illustrative purposes, there is shown in the drawings an electrical sign receptacle ot' the. type which embodies in its organization a one-piece porcelain or equivalent body 1 which is equipped with the necessary contacts and line terminal elements. "lhe'receptacle body is illns trated as being provlded at itsti'oiit orf outer end with an am'iular-bindingcollar 2 presenting atits 'lnnerside opposite side of the supporting element, as plamly'shown in Figs, 1 and'2 of the drawin'gs.

In carrying fbrward the-present invention, it unnecessaryto provide any special means, in the formation of the hole in the sign boarder. sheet, or' in or upon the receptacle body; to prevent the latter from turning, as this function is provided forby the construction and action of" the fastening devlce 1n connectlon with keeper notches 75 or equivalent seats 5 provided 111 diametrically opposite portions of the shoulder atthe inner side of the collar 2, as will be presently explained. Hence, in using thepresent invention, it is only necessary to providc the Patented .Il'une 1.5, 1909.

a shoulder r01 impinge against one'side of a sign sheet or other supporting element 3 in opposition tof the fastening device at; which is adapted 'to' be placed over 'the receptaclebody; at the i sign board or equivalent snpportingelement 3 with the plain circular holesti for receiving' the receptacle body.

The fastening device 4 essentially consists of a one-piece metal blank so stamped and set up as to provide a ring member 7 having at diametrically opposite points for? Wardly projecting bearing feet 8 bent laterally from the inner edge portions of the ring member at opposite points and adapted to be held in firm contact with the support ing element 3 in opposition to the inner side of the collar 2 of the receptacle body. The said ring or f time member 7 of the fastening deyice also has struck up therefrom at diametrically opposite points, rearwardly extending spring locking tongues 9 adapted to engage behind catch shoulders 10 formed on opposite sides of the receptacle body 1. In connection with the opposite catch shoulders 10, the body is also provided in opposite sides at and contiguous to the inner end thereof with the guiding grooves 11 which serve-to guide and lead the free ends of the spring tongues 9 up to the pointwhere they snap into engagement with the snap shoulders 10. In addition'to the elements specitied the ringer frame member 7 is provided at opposite points with oit'standing' slightly inclined or deflected bearing earslQ laiving threaded openings 'ltl therein adapted to adjustably receive therein the binding screws 14. Thesebinding screws are held at an inclination bythe ears 12 and are adapted to be screwed tightly against edge portions of the supporting element directly over the keeper notches 5 so as to s ightly pinch said edges into said notches 5 and thus interlock the several elements together to prevent turning of the receptacle in its hole. The loosening of the screws 14 and'the lifting of the free ends of the tongues 9 out ofiengagement wit-h the shoulders 10 permits the fastening. device to be readily removed from the receptacle body, and in mounting the parts in place. after a receptacle body has been inserted in its hole, it is only necessary:

one side with spring locking tongues for engagement with said catch shoulders, and at the side opposite said tongue with otfset binding elements for engagement with one side of the supporting element.

2. In an electrical receptacle mounting, the supporting element having a plain round receiving hole, the receptacle body adapted to be inserted throughsaidhole and-pro- .ing screws engaging edge portions of the supporting element over saidle'eper notches. ,3. In an QlQCtIlitl receptacle"mountin the supporting element, the receptacle bod y I having'ja binding shoulder,provided with keeper notches therein, and a fastening device having an interlocking engagement with the receptacle body and provided with bearing ears, bindlug screws 2l(.l]1l i1l)ly mounted in said bearing ears and impinging edge portions of the supporting element over said keeper notches.

4. In an electrical receptacle mounting, the-supporting element, the receptaclebmly having oppositely arranged catch shoulders, and a fastening device comprising a ring member provided with bp'posite inclined spring locking tongues engaging the catch shoulders, oifstanding bearing feet engaging against one side of the supporting element, and oppositelyvv located threaded bearing ears, and binding screws mounted in said bearing cars and impinging against edge portions of the'supporting element.

In testimony whereof I hereunto aflix my signature in the presence of two witness EDGAR H. FREEM;

Witnesses Fnonnxcn Banainisriin, Mroimnn Hie-ems. 

